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LPC4367 USB Data Pulldowns

Question asked by Max Schweiner on Jun 7, 2018
Latest reply on Jun 12, 2018 by Hui_Ma

Are 15kOhm nominal pulldown resistors required on the USB0 DP and DM lines of an LPC4367JET256, or are they included on-die? The reference manual specifically mentions that series termination resistors should not be included, but makes no mention of the pulldowns required by the USB spec.


The Kiel MCB4300 eval kit does not include them, but the LPC4357-EVB eval kit available at element14 does (as well as 47pF capacitors on the data lines).